Hi there Alembic experts. I have come across this guitar from my late uncle who willed his stock to me. It says Skylark on the headstock but very little anywhere else, and although it has the sculpted body, it bears little resemblence to other Alembic Skylark shapes. I wondered if it might be an old model before Alembic branding became more consolidated. Or what? Perhaps it's a mongrel or a fake?